The norris peters co



No. 6l2`,272. Patented Oct. Il, |898. W. PULLEN.V

BLUWPIPEKLAMP FORPLUMBERS 0R PAINTERS.

(Application led Nov. 5, 1897.)

(No Model.)

' rH: Ncnms Imm no. moro-LITRO., wAsmnGTuN. u4 c.

'NITED STATES WILLIAM PULLEN, OF BIRMINGHAM, ENGLAND.

BLOWPlPE-LAIVIP FOR PLUMBERS OR PAINTERS.

SPECIFICATION forming part of Letters Patent No. 612,272, dated October1 1, 1898.V Application iiled November 5, 1897. Serial No. 657,549. (Nomodel.) Patented in England August 19,1896,No. 18,384.

To all whom t may concern.-

Beit known that I, WILLIAM PULLEN, a subject of the Queen of GreatBritain, residing at Birmingham, England, have invented certain newandusefulImprovements in Blowpipe-Lamps for the Use of Plumbers or Paintersand for Heating Purposes Generally, (for which I have obtained LettersPatent of Great Britain, No` 18,884, dated August 19, 1896;) and I dohereby declare that the following is a full, clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same.

The object of my invention is principally to dispense with the air pumpsor blowers ordinarily employed in bloWpipe-lamps for forcing by pressureof air the petroleum or other volatile liquid hydrocarbon from thereservoirs or containers to the vaporizers of the lamps; and my saidinvention consists in constructing and arranging for that purpose theparts of the said blowpipe-lamps, as hereinafter described.

I will describe my invention in connection with a blowpipe-lamp for useby plumbers and painters.

The cylindrical reservoir containing the petroleum or other likevolatile liquid hydrocarbon is lled, preferably, by an opening at top,fitted with a closing screw-plug, the said reservoir being provided witha handle for holding the lamp when in use. The top of the cylindricalreservoir is cupped for the purpose hereinafter described, and at themiddle of the said top is a short pipe or wick holder which supports aglobular or cylindrical vaporizer closed at top by a screw-plug. In thevaporizer is a horizontal pipe or passage through which the i'lame isprojected, a flame-obstructing cross-piece, preferably in the form of atube, in the saidhorizontal pipe dividing or spreading the said flame.The petroleum or other volatile liquid hydrocarbon is fed from thereservoir to the vaporizer by an asbestos wick, the said wick risingthrough the axial wick-tube described and filling the space between thepassage in the vaporizer and the sides of the vaporizer. At the handleside of the lamp and in line with the axis of the tubular passage in thevaporizer is a nozzle or burner, and passing from the saidbu'rner tothetop of the vaporizer is a pipe by which the vapor produced in thevaporizer is conducted to the burner or nozzle. At the back of theburner or nozzle is a screw-valve by which the passage of the vapor fromthe vaporizer to the burner is controlled and out o.

For laboratory or other heating purposes a vertical instead of ahorizontal flame may be used, or a spreader may be arranged at the topof the vaporizer for producing two or more vertical and horizontal namesor jets.

My improved blowpipe-lamps are applicable for heating purposesgenerally, the details of their construction being moditied to suit theparticular use to which they are to be applied. 4 Figure l of theaccompanying drawings represents in side elevation, Fig. 2 inlongitudinal section, and Fig. 3 in cross section, a plumbers orpainters blowpipe-lamp constructed according to my invention. Fig. 4represents asection of the valve in its open position, and Fig. 5represents a modified bloWpipe-lamp constructed according to myinvention, as hereinafter described.

The same letters of reference indicate the same parts in the severalfigures of the drawings.

' I will iirst describe the principal arrangement of my inventionrepresented in Figs. l, 2, 3, and 4.

a is the reservoir of the lamp containing the petroleum or other likevolatile liquid hydro` carbon. The said reservoir is filled by anopening at top closed by the screw-plug l). (See Fig. 3.)

c is the handle by which the lamp is held when in use.

d is the cupped top of the reservoir, constituting a shallow vessel forholding asmall quantity of petroleum or methylated spirit by which thevaporizer is first heated for starting the lamp. The valve by which thepassage of vapor of oil from the vaporizer to the burner is controlledmay also be heated on starting the lamp by petroleum or methylatedspirit poured into the small cup a2 and ignited. j

Screwed into the middle of the reservoir a and projecting therefrom is ashort pipe or wick holder e, supporting the globular (or IOOcylindrical) vaporizer f, having in its axis a horizontal tube orpassage g. In the middle of the pipe or passage g of the vaporizer is aflame-obstructing cross-piede h, preferably in the form of a tube, forspreading or dividing the llame passing through the said pipe orpassage.

i is the asbestosl wick by which the petroleum in the reservoir d is fedby capillary attraction to the vaporizer f. It will be seen that theasbestos wick t' rises from the reservoir through the axial wick-tubeand fills the space between the sides of the globular vaporizer f andthe pipe or passage g, as represented in the cross-section, Fig. 8. Thelifting of the asbestos Wick t' from the reservoir d into the vaporizerf may be assisted by means of a wire passed through the opening in thetop of the vaporizer to draw up the wick, the said opening being closedby the screw-plug lo.

lis the burner at the handle end of the lamp, the said burner being incommunication by means of the exit-passage m and pipe n with the top ofthe vaporizer f. In line with the axis of the tubular passage g in thevaporizer and at the back of the burner Z is a screw-Valve p, by whichthe passage of the vapor of oil from the vaporizer to the burner iscontrolled and cut off.

In Fig. 2 the screw-valve p is represented in its closed position, thepassage of the vapor from the vaporizer to the burnerbeing cut off, andin Fig. 4 the valve is represented open and the vapor permitted to passfrom the vaporizer through the pipe n and exit-passage m to the burnerZ.v

The nozzle or delivery end of the tubular passage g through which theflame passes is provided With a perforated pipe q for admitting air tothe flame. Y

In using my improved bloWpipe-lamp-say for burning olf paint-a smallquantity of petroleum or methylated spirit is poured into the cupped topor shallow vessel d of the reservoir a and into the small cup ce2 andthesaid petroleum ignited for the purpose of starting the lamp. Thevaporizer f is heated and the petroleum raised by the capillary actionof the asbestos Wick i into the said vaporizer is thereby vaporized, andwhen the vapor has attained the desired pressure the screw-valve p ofthe burner is opened and the vapor under pressure escapes at the nozzleor burnerl and is ignited and a blowpipeflame produced, the said flamepassing through and projecting from the nozzle of the tubular passage gin the vaporizer. By the heat of the blowpipe-ilame in the tubularpassage g of the vaporizer the heating of the vaporizer and theproduction of vapor under pressure is continued after the eX- haustionof the petroleum or methylated spirit in the Vessel d by which thestarting of the flame was produced. In thisway the automatic feeding ofthe nozzle or burner with the vapor of oil under pressure is continuedso long as the nozzle or burner valvep is open and the supply ofpetroleum to the vaporizer maintained.

Fig. 5 represents in elevation a blowpipelamp for laboratory and otherlike work con- Structed according to my invention, the said lamp havinga vertical flame and being also provided With a spreader for producingtwo or more vertical and horizontal flames or jets. In this modifiedlampv the tubular passage g through the vaporizer f is Vertical, thesaid vaporizer being supported by the side pipe f2, through which theasbestos wick from the reservoir d is drawn into the said vaporizer f bymeans of a wire passed through the side opening at r in the saidvaporizer.

'I'he vapor isconducted by the pipe n, from the vaporizer to the burnerZ, the said vapor being regulated and cut off by the screw-valve p, asdescribed with respect to the lamp, Figs. l, 2, and 3.

When the vertical flame issuing from the projecting top of the passage gin the vaporizer is required to be spread, a spreader (marked s) may befitted upon the projecting top of the passage g, as represented in thedrawings. By the use of this spreader a series of horizontal flames orjets and one or more vertical jets are produced. Although I have foundwicks of asbestos to answer well, yet wicks of other non combustiblefibrous material, such as slag-wool, may be used in lamps constructedaccording to my invention.

I have. represented the flame-obstructing cross-piece t in the form of asingle tube, but do not Wish to be understood as limiting myself lto asingle cross-piece, nor to making this cross-piece tubular.

Having now particularly described and ascertained the nature of myinvention and in what manner the same is to be performed, I declare thatI claim as my invention A blowpipe-lamp, consisting of an oil-reservoirhaving a tubular wick-holder rising from its top, an atmosphericburner-tube mounted on the Wick-tube, a flame-obstructing cross-piece inthe interior of the burnertube, a Wick-case surrounding the ou ter sideof and concentric with the burner-tube and communicating through thewick-tube with the reservoir, an incombustible wick eXtending throughthe wick-case entirely around the burner-tube and hanging within thereservoir to lead oil from the latter to the wickcase around saidburner-tube, and a pipe provided with a regulating-Valve and burner jetor nipple, the burner-jet arranged centrally near one end of theburner-'tube and the pipe leading from the burner-jet to the saidWick-case which surrounds the burnertube, substantially as and for thepurposes described.

VILLIAM PULLEN. [L s] Vitnesses:

RICHARD SKERRETI, WILLIAM J AMES BOWKER.

IOO

IIO

